Leverson Dam Reservoir Report

Last Updated: December 11, 2025

Leverson Dam, located in BLYTHDALE, MO, Iowa, is a privately owned structure designed by USDA NRCS with a primary purpose of serving as a fire protection, stock, or small fish pond.


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Summary

Completed in 1991, this earth dam stands at a height of 27 feet and has a length of 348 feet, providing a maximum storage capacity of 45 acre-feet. Situated on the TR- EAST FORK BIG CREEK river or stream, the dam is regulated by the IOWA DNR and is subject to state permitting, inspection, and enforcement.

With a low hazard potential and a moderate risk assessment rating, Leverson Dam is an essential resource for water management in Decatur, Iowa. Despite not being currently rated for its condition, the dam continues to fulfill its intended purposes effectively. While the dam has not undergone recent inspections or condition assessments, its design and construction by the Natural Resources Conservation Service ensure its structural integrity and functionality.

As an integral part of the water infrastructure in the area, Leverson Dam plays a crucial role in maintaining water resources for fire protection, livestock, and small fish ponds. With its controlled spillway and adequate storage capacity, the dam contributes to the overall water management strategy in the region. As water resource and climate enthusiasts, it is important to recognize the significance of structures like Leverson Dam in sustaining a balanced and sustainable environment for both human and natural ecosystems.

Year Completed

1991

Dam Length

348

Dam Height

27

River Or Stream

TR- EAST FORK BIG CREEK

Primary Dam Type

Earth

Surface Area

3

Drainage Area

0.19

Nid Storage

45

Hazard Potential

Low

Foundations

Soil

Nid Height

27
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.